Unlike other call filters, RCB silently blocks calls and messages at a system level. You need not even know its working and can choose to be notified only if specific numbers are blocked. It doesn’t need to be set it as a default messaging app to block SMS.

Only SuperSu is officially supported. If youre having problems, FIRST MAKE SURE SELINUX IS PERMISSIVE, as described, for example, here: http://goo.gl/0RUkEh

99% of “it stopped working” errors are caused by timed out root requests after auto-updates, to use this app together with auto-update in Play, you MUST disable re-authentication or click “remember” in your superuser app, or you will keep losing root and breaking daemon function.

WARNING – THIS APP DOESN’T BLOCK IP TRAFFIC – you cannot use it with WiFi or LTE calling enabled. So called “enhanced messaging” is also not supported.

Before communicating an issue always perform a clean install – UNINSTALL, REBOOT, INSTALL FROM PLAY, ENABLE DEBUGGING and test with one number WITHOUT RESTORING YOUR BACKUP DATA. Keep in mind that rebooting wipes the daemon log making many bug reports useless.

This app does not control your voicemail service. If your blocked calls are being sent to voice mail, try another blocking method or use Google Voice. You can simulate a disconnected message by forwarding busy calls to a number that doesn’t exist.

Pro tip!
You can simulate a disconnected message by forwarding busy calls to a number that doesn’t exist like this:

1. Create a list. Set this list to use “Reject” as the blocking method.
2. Go to your phone app settings, there is usually an advanced subsection. Inside you will find call forwarding.
3. Click “forward when busy” and input a number that you know is currently disconnected (perhaps an old number of yours) or just one that’s not in use.

The downside is that the standard drop call swipe will now also redirect to this dead number.

Permissions:
OUTGOING CALL permissions are needed for hidden mode, using the phone’s dialer to enter a password.
ACCOUNTS are needed for Google Contact Groups and Backup.
SEND SMS needed for auto replies.
INTERNET ACCESS is for licensing and the “Send report” tool.
LOG DATA only sent with your permission via the “Write to us” menu item in Settings.

WHAT’S NEW

• Added ability to clear system logs of contact entries to the add and contact editing dialogs
Warning, only the latest available SuperSu is officially supported. KingUser and its derivatives are not recommended. Please carefully read the app description.